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Bellwork

Clickers. Bellwork. Solve for x. Bellwork Solution. Solve for x. Bellwork Solution. Solve for x. Bellwork Solution. Solve for x. Apply the Sine & Cosine Ratio. Section 7.6a. The Concept. Yesterday the concept of the tangent ratio was introduced

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Bellwork

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  1. Clickers Bellwork Solve for x

  2. Bellwork Solution Solve for x

  3. Bellwork Solution Solve for x

  4. Bellwork Solution Solve for x

  5. Apply the Sine & Cosine Ratio Section 7.6a

  6. The Concept • Yesterday the concept of the tangent ratio was introduced • Today we’re going to add to our knowledge of trigonometric ratios, the sine and cosine functions

  7. The Ratio Functionally, the sine ratio works very similarly to the tangent function, only it utilizes a different combination of sides Hypotenuse Opposite Side θ Remember: The values for the tangent ratio can be found either via the sine button on your calculator or the table on page 925

  8. In use Find the sine of the angle, theta 26 21 θ

  9. On your own Find the sine of theta

  10. On your own Find the sine of theta

  11. In use Find the correct value for x 19 x 22o

  12. On your own Solve for x

  13. On your own Solve for x

  14. The Ratio The cosine function is similar to the sine function in that it utilizes the adjacent function Hypotenuse θ Adjacent Side

  15. On your own Find the cosine of theta

  16. On your own Find the cosine of theta

  17. On your own Solve for x

  18. On your own Solve for x

  19. On your own Find the sine of 45

  20. On your own Find the cosine of 60

  21. Practical example You are trying to build a ramp so that you can take your bike of some “sweet jumps.” The ramp will have a 320 angle and the face of the ramp will be 12.5 feet long. How wide is the base? • 8 ft • 10.6 ft • 14.74 ft

  22. Practical example You are trying to build a ramp so that you can take your bike of some “sweet jumps.” The ramp will have a 320 angle and the face of the ramp will be 12.5 feet long. How tall will the ramp be? • 6.62 ft • 10.22 ft • 23.56 ft

  23. Homework 7.6 10-15, 19-21, 30, 31

  24. Most Important Points • Sine Ratio • Cosine Ratio • Applying the Sine and Cosine Ratio

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